Auxiliary positioning device for orthopedic surgery drilling

Abstract

The invention belongs to the technical field of medical instruments, and particularly discloses an orthopedic surgery drilling auxiliary positioning device which comprises a placing frame, arc-shaped frames are arranged at the positions, close to the edges of the two sides, of the top of the placing frame, and two guide rails are arranged between the opposite sides of the two arc-shaped frames. The outer surfaces of the two guide rails are slidably connected with a pre-positioning cover, two sliding openings are formed in each of the two sides of the pre-positioning cover, the two guide rails are correspondingly clamped between the inner walls of the sliding openings in a sliding mode, and positioning assemblies are arranged at the positions, close to the edges of the two ends, in the two guide rails; according to the leg bone drilling device, by arranging the restraining assembly, the pressing assembly and the positioning assembly, when a medical worker holds the drilling device by hand to drill a leg bone of a patient, the drilling device can be positioned at a specified angle, and deviation and shaking are prevented from being generated in the drilling process.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to an auxiliary positioning device for drilling in orthopedic surgery. Background Art

[0002] With the development and progress of science, orthopedics has made great progress in diagnosis and treatment, and medical methods have also made great progress. Bone screw reduction is often used to assist in the treatment of orthopedic diseases such as fractures. Most of the existing orthopedic drilling is done by medical staff holding a drill.

[0003] Currently, when medical staff use a handheld drill to drill holes in the patient's leg bones, due to the hard texture of the bones, they need to apply downward pressure while drilling with the handheld drill, which can easily cause shaking during the drilling process, resulting in deviations in the drilling position. When drilling at an inclined angle, it can also lead to inaccurate positioning. Summary of the invention

[0004] In order to solve the problems existing in the prior art, the present invention provides an orthopedic surgery drilling auxiliary positioning device.

[0005] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: an orthopedic surgery drilling auxiliary positioning device, comprising a placement frame, wherein arc frames are arranged at the top of the placement frame near the edges of both sides, two guide rails are arranged between the opposite sides of the two arc frames, and the outer surfaces of the two guide rails are slidably connected with pre-positioning covers, and two sliding openings are provided on both sides of the pre-positioning covers, and the two guide rails are correspondingly slidably engaged between the inner walls of the sliding openings, and positioning components are arranged inside the two guide rails near the edges of both ends;

[0006] A clamping assembly is provided on an inner wall of one side of the pre-positioning cover, a restraining assembly is provided inside the pre-positioning cover, arc-shaped support plates are provided at the bottom of the placement frame near the edges on both sides, and straps are provided at the tops of the two arc-shaped support plates near the edge on one side, arc-shaped sliding sleeves are slidably provided on the outer surfaces of the two arc-shaped frames, and a plurality of positioning holes are equidistantly provided on the outer surfaces of the opposite sides of the two arc-shaped frames.

[0007] Preferably, a docking sleeve is fixed on the opposite side of the two arc-shaped sliding sleeves, and the docking sleeves are correspondingly extended into the interior of the arc-shaped sliding sleeves. Both ends of the two guide rails are correspondingly engaged between the inner walls of the docking sleeves, and lighting lamps are provided at the bottom of the pre-positioning cover near the front and rear edges.

[0008] Preferably, a top cover is provided at the bottom of the pre-positioning cover, a threaded sleeve is fixed on the top of the top cover, a cross shaft is rotatably provided inside the threaded sleeve at the top of the top cover, the bottom of the cross shaft passes through to the bottom of the top cover, a threaded knob is threadedly connected to the outer surface of the threaded sleeve, the top of the cross shaft is fixed to the bottom of the threaded knob, a guide tube is provided at the top of the top cover near one side edge, the bottom of the guide tube slides through to the bottom of the top cover, a through hole is opened on the inner bottom surface of the pre-positioning cover and the guide tube extends to the inside of the through hole.

[0009] Preferably, the constraint assembly includes a U-shaped frame, which is arranged on one side of the pre-positioning cover, and both ends of the U-shaped frame slide through the interior of the pre-positioning cover, and an arc-shaped baffle is fixed on the inner bottom surface of the pre-positioning cover at one side edge of the through hole, and the inner arc surface of the arc-shaped baffle is flush with the inner arc surface of the through hole.

[0010] Preferably, an elliptical frame is provided inside the pre-positioning cover, both ends of the U-shaped frame are fixed on one side of the elliptical frame, the arc surface of one side of the elliptical frame is opposite to the inner arc surface of the arc-shaped baffle, the guide tube is located between the arc surface of one side of the elliptical frame and the inner arc surface of the arc-shaped baffle, and a return spring is fixed on the outer surface of one side of the pre-positioning cover, and one end of the return spring is fixed on the inner wall of the U-shaped frame.

[0011] Preferably, the clamping assembly includes a T-block, two side constraint plates are fixed to one side of the pre-positioning cover, an upper constraint plate is arranged between the tops of the two side constraint plates, one side of the two side constraint plates are slidably fitted with a U-shaped push block, one side of the U-shaped push block is fitted with an inner wall of one side of the pre-positioning cover, the top of the U-shaped push block is fitted with the bottom of the upper constraint plate, the T-block is located between the two U-shaped push blocks, and both ends of the T-block extend to the inside of the U-shaped push block accordingly.

[0012] Preferably, the top of the U-shaped push block is inclined with a waist-shaped groove that penetrates into the interior, and two levers are slidably arranged between the inner walls on both sides of the waist-shaped groove. The bottoms of the two levers are fixed on the T-block, and one side of the T-block extends to the interior of the pre-positioning cover. One side of the two U-shaped push blocks is correspondingly located on one side of the guide rail, and a cylindrical cavity is opened on the other side of the T-block. A support spring is fixed to the inner wall of one side of the cylindrical cavity, and one end of the support spring is fixed to the inner wall of one side of the pre-positioning cover.

[0013] Preferably, a double protrusion is rotatably provided on the inner bottom surface of the pre-positioning cover, and the double protrusion is located on the inner side of the elliptical frame, one end of the double protrusion is fitted with an inner wall of one side of the elliptical frame, and an outer surface of one side of the elliptical frame is fitted with one side of the T-block, and a cross slot is provided on the top of the double protrusion, and the bottom of the cross shaft is engaged in the inside of the cross slot.

[0014] Preferably, the positioning assembly includes a positioning rod, an inner cavity is opened at the end edge of the guide rail, the positioning rod is located inside the inner cavity, one end of the positioning rod slides through to the outside of the guide rail, an annular plate is fixed to the outer surface of the positioning rod, the annular plate slides between the inner walls of the inner cavity, a positioning spring is fixed to one side of the annular plate, one end of the positioning spring is fixed to one inner wall of the inner cavity, contacts are provided on both sides of the annular plate, copper plates are fixed to the inner walls of both sides of the inner cavity, the two copper plates are electrically connected to the lighting lamp, and the two copper plates are in contact with each other correspondingly.

[0015] Preferably, a side groove is provided on one side of the guide rail, a storage cavity is provided inside the guide rail, the storage cavity and the side groove are communicated with each other, the other end of the positioning rod passes through the inside of one side of the storage cavity, a contact plate is provided inside the storage cavity, the front side of the contact plate extends to the inside of the side groove, both ends of the contact plate extend to the two sides of the storage cavity correspondingly, and both sides of the contact plate are inclined surfaces, the inclined surfaces on both sides of the contact plate correspond to and fit with the other end of the positioning rod, a guide pressure block is fixed on one side of the U-shaped push block, the guide pressure block is slidably located inside the side groove, and one side of the guide pressure block is fit with the front side of the contact plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention is provided with a constraint component, a clamping component and a positioning component, so that when medical staff hold a drill to drill a patient's leg bone, the drill can be positioned at a specified angle to prevent deviation and shaking during drilling. This solves the problem that when medical staff hold a drill to drill a patient's leg bone, due to the hard texture of the bone, the handheld drill needs to apply downward pressure during drilling, which easily causes shaking during the drilling process, resulting in deviation of the drilling position, and inaccurate positioning when drilling at an inclined angle;

[0018] 2. The present invention is provided with a constraint assembly to fix the guide tube of the constraint drill, so that the drilling part of the drill is inserted into the guide tube for constraint and limitation. When the constraint assembly is working, the double convex block is driven by rotating the threaded knob, so that the convex part of one end of the double convex block pushes the elliptical frame toward the clamping assembly. When the elliptical frame is pushed, the other side of the elliptical frame is driven to slide toward the arc baffle, so that the guide tube is pressed between the arc baffle and the other side of the elliptical frame, so that the guide tube is fixed and the clamping assembly is triggered to work at the same time;

[0019] 3. The present invention is provided with a clamping assembly, which can fix the pre-positioning cover on the guide rail when the pre-positioning cover slides to the corresponding position on the guide rail, so that the pre-positioning cover is used as a supporting platform for supporting the drilling device. When the clamping assembly is working, when the convex part of one end of the double convex block pushes the elliptical frame toward the clamping assembly, it will push the T-block toward one side of the pre-positioning cover. During the sliding process of the T-block, the U-shaped push block can be pushed toward both sides of the sliding port through the mutual constraint of the lever and the waist groove, so that the guide rail is pressed against the pre-positioning cover through one side of the U-shaped push block, limiting the relative movement of the guide rail and the pre-positioning cover. When the guide rail is pressed, the positioning group will be triggered to work;

[0020] 4. The present invention is provided with a positioning component, which can adjust the angle direction of the guide rail together with the pre-positioning cover to perform angle positioning on the guide rail. When the positioning component is working, when one side of the U-shaped push block slides toward the guide rail, the guide pressure block on the U-shaped push block will slide to the inside of the side groove, and then as the U-shaped push block slides toward the guide rail, the contact plate will be pressed into the inside of the storage cavity. When the contact plate slides into the storage cavity, the inclined parts at both ends of the contact plate will contact one end of the positioning rod, and then the other end of the positioning rod will be pushed outward to the inside of the positioning hole on the arc frame, so that it constrains the guide rail and the arc frame to each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The present invention provides a schematic diagram of a side-view stereoscopic structure of an orthopedic surgery drilling auxiliary positioning device;

[0022] Figure 2 The present invention provides a top-view stereoscopic structural diagram of a placement frame in an orthopedic surgery drilling auxiliary positioning device;

[0023] Figure 3 The present invention provides a bottom-up stereoscopic structural diagram of a pre-positioning cover and a guide rail in an auxiliary positioning device for drilling in orthopedic surgery;

[0024] Figure 4 The present invention provides a cross-sectional three-dimensional structural schematic diagram of a pre-positioning cover and a guide rail in an orthopedic surgery drilling auxiliary positioning device;

[0025] Figure 5The present invention provides a one-side cross-sectional stereoscopic structural schematic diagram of a pre-positioning cover and a guide rail in an orthopedic surgery drilling auxiliary positioning device;

[0026] Figure 6 The present invention provides a schematic diagram of the other side cross-sectional stereoscopic structure of a pre-positioning cover and a guide rail in an orthopedic surgery drilling auxiliary positioning device;

[0027] Figure 7 The present invention provides a schematic cross-sectional three-dimensional structure diagram of a pre-positioning cover in an auxiliary positioning device for drilling in orthopedic surgery;

[0028] Figure 8 The present invention provides a partial cross-sectional three-dimensional structural schematic diagram of a guide rail in an orthopedic surgery drilling auxiliary positioning device;

[0029] Fig. 9 For the present invention Figure 8 A magnified partial view of point A in the middle.

[0030] In the figure: 1. Placement frame; 2. Arc support plate; 3. Binding belt; 4. Arc frame; 5. Arc sliding sleeve; 6. Positioning hole; 7. Docking sleeve; 8. Guide rail; 9. Pre-positioning cover; 10. Top cover; 11. Guide tube; 12. Threaded knob; 13. Threaded sleeve; 14. Cross shaft; 15. Illuminating lamp; 16. Through hole; 17. Side groove; 18. Double convex block; 19. Cross slot; 20. U-shaped frame; 21. Return spring ; 22. Arc baffle; 23. Elliptical frame; 24. Upper constraint plate; 25. Side constraint plate; 26. U-shaped push block; 27. Waist-shaped groove; 28. T-shaped block; 29. ​​Push rod; 30. Storage cavity; 31. Contact plate; 32. Inner cavity; 33. Positioning rod; 34. Annular sheet; 35. Positioning spring; 36. Copper sheet; 37. Contact; 38. Slide; 39. Guide pressure block; 40. Cylindrical cavity; 41. Support spring. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figure 1-Figure 9, an orthopedic surgery drilling auxiliary positioning device, comprising a placement frame 1, an arc frame 4 is arranged at the top of the placement frame 1 near the edges of both sides, two guide rails 8 are arranged between the opposite sides of the two arc frames 4, the outer surfaces of the two guide rails 8 are slidably connected with a pre-positioning cover 9, and two sliding openings 38 are opened on both sides of the pre-positioning cover 9, and the two guide rails 8 are correspondingly slidably engaged between the inner walls of the sliding openings 38, and positioning components are arranged inside the two guide rails 8 near the edges of both ends;

[0033] A clamping assembly is provided on the inner wall of one side of the pre-positioning cover 9, and a restraining assembly is provided inside the pre-positioning cover 9. An arc-shaped support plate 2 is provided at the bottom of the placement frame 1 near the edges of both sides, and a binding belt 3 is provided at the top of the two arc-shaped support plates 2 near the edge of one side. The outer surfaces of the two arc-shaped frames 4 are slidably provided with an arc-shaped sliding sleeve 5, and the outer surfaces of the opposite sides of the two arc-shaped frames 4 are equidistantly provided with a plurality of positioning holes 6. A docking sleeve 7 is fixed on the opposite side of the two arc-shaped sliding sleeves 5, and the docking sleeves 7 are correspondingly penetrated into the interior of the arc-shaped sliding sleeves 5, and the two ends of the two guide rails 8 are correspondingly engaged between the inner walls of the docking sleeves 7. The bottom of the pre-positioning cover 9 is provided with a There is a lighting lamp 15, and a top cover 10 is arranged at the bottom of the pre-positioning cover 9. A threaded sleeve 13 is fixed on the top of the top cover 10. The top of the top cover 10 is located inside the threaded sleeve 13 and is rotatably provided with a cross shaft 14. The bottom of the cross shaft 14 passes through to the bottom of the top cover 10. A threaded knob 12 is threadedly connected to the outer surface of the threaded sleeve 13. The top of the cross shaft 14 is fixed to the bottom of the threaded knob 12. A guide tube 11 is arranged at the top of the top cover 10 near one side edge. The bottom of the guide tube 11 slides through to the bottom of the top cover 10. A through hole 16 is opened on the inner bottom surface of the pre-positioning cover 9 and passes through to the bottom. The guide tube 11 extends to the inside of the through hole 16.

[0034] The effect achieved is that the placement frame 1 is first installed on the operating table, and then the patient's legs are placed on the inner side of the arc-shaped support plate 2, and then the patient's legs are constrained on the inner side of the arc-shaped support plate 2 by the straps 3, and then the arc-shaped sliding sleeve 5 is slid along the arc-shaped frame 4, so that it can drive the guide rail 8 to slide to the corresponding angle, and at the same time, the pre-positioning cover 9 is slid on the guide rail 8, so that the pre-positioning cover 9 can slide to the position just above the drilling part of the patient's leg. By providing a constraint component, a clamping component and a positioning component, the drill can be positioned at a specified angle when the medical staff holds the drill to drill the patient's leg bones, so as to prevent deviation and shaking during drilling. This solves the problem that when medical staff currently hold the drill to drill the patient's leg bones, due to the hard texture of the bones, the handheld drill needs to apply downward pressure when drilling, and it is easy to shake during the drilling process, resulting in deviation of the drilling position. When drilling at an inclined angle, it will also cause inaccurate positioning.

[0035] like Figure 4 , Figure 6 and Figure 7 As shown, the constraint assembly includes a U-shaped frame 20, which is arranged on one side of the pre-positioning cover 9, and both ends of the U-shaped frame 20 slide through the interior of the pre-positioning cover 9. The inner bottom surface of the pre-positioning cover 9 is located at one side edge of the through hole 16 and is fixed with an arc-shaped baffle 22, and the inner arc surface of the arc-shaped baffle 22 is flush with the inner arc surface of the through hole 16. An elliptical frame 23 is arranged inside the pre-positioning cover 9, and both ends of the U-shaped frame 20 are fixed on one side of the elliptical frame 23, and one side arc surface of the elliptical frame 23 is opposite to the inner arc surface of the arc-shaped baffle 22. The guide tube 11 is located between the one side arc surface of the elliptical frame 23 and the inner arc surface of the arc baffle 22. A reset spring 21 is fixed to the outer surface of one side of the pre-positioning cover 9, and one end of the reset spring 21 is fixed to the inner wall of the U-shaped frame 20.

[0036] The effect achieved is that by rotating the threaded knob 12, the double protrusion 18 is driven, so that the raised part of one end of the double protrusion 18 pushes the elliptical frame 23 toward the clamping assembly. When the elliptical frame 23 is pushed, the other side of the elliptical frame 23 is driven to slide toward the arc baffle 22, thereby clamping the guide tube 11 between the arc baffle 22 and the other side of the elliptical frame 23, fixing the guide tube 11 and triggering the clamping assembly to work at the same time.

[0037] like Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7As shown, the clamping assembly includes a T-block 28, two side constraint plates 25 are fixed to one side of the pre-positioning cover 9, an upper constraint plate 24 is arranged between the tops of the two side constraint plates 25, one side of the two side constraint plates 25 are slidably fitted with a U-shaped push block 26, one side of the U-shaped push block 26 is fitted with an inner wall of one side of the pre-positioning cover 9, the top of the U-shaped push block 26 is fitted with the bottom of the upper constraint plate 24, the T-block 28 is located between the two U-shaped push blocks 26, and both ends of the T-block 28 extend to the inside of the U-shaped push block 26 accordingly, the top of the U-shaped push block 26 is inclinedly provided with a waist-shaped groove 27 that penetrates to the inside, two levers 29 are slidably arranged between the inner walls on both sides of the waist-shaped groove 27, and the bottoms of the two levers 29 are fixed on the T On the T-block 28, one side of the T-block 28 extends to the interior of the pre-positioning cover 9, one side of the two U-shaped push blocks 26 are correspondingly located on one side of the guide rail 8, and a cylindrical cavity 40 is provided on the other side of the T-block 28. A support spring 41 is fixed to the inner wall of one side of the cylindrical cavity 40, and one end of the support spring 41 is fixed to the inner wall of one side of the pre-positioning cover 9. A double protrusion 18 is rotatably provided on the inner bottom surface of the pre-positioning cover 9. The double protrusion 18 is located on the inner side of the elliptical frame 23, and one end of the double protrusion 18 is fitted with an inner wall of one side of the elliptical frame 23. The outer surface of one side of the elliptical frame 23 is fitted with one side of the T-block 28. A cross slot 19 is provided on the top of the double protrusion 18, and the bottom of the cross shaft 14 is engaged in the inside of the cross slot 19.

[0038] The effect achieved is that when the raised portion at one end of the double convex block 18 pushes the elliptical frame 23 toward the clamping assembly, it will also push the T-block 28 toward one side of the pre-positioning cover 9. During the sliding process of the T-block 28, the mutual constraint between the lever 29 and the waist-shaped groove 27 can push the U-shaped push block 26 toward both sides of the sliding opening 38, thereby pressing the guide rail 8 onto the pre-positioning cover 9 through one side of the U-shaped push block 26, limiting the relative movement between the guide rail 8 and the pre-positioning cover 9, and triggering the positioning group to work when the guide rail 8 is pressed.

[0039] like Figure 1 , Figure 7 , Figure 8 and Fig. 9As shown, the positioning assembly includes a positioning rod 33, an inner cavity 32 is opened at the end edge of the guide rail 8, the positioning rod 33 is located inside the inner cavity 32, one end of the positioning rod 33 slides through the outside of the guide rail 8, an annular sheet 34 is fixed to the outer surface of the positioning rod 33, the annular sheet 34 slides between the inner walls of the inner cavity 32, a positioning spring 35 is fixed to one side of the annular sheet 34, one end of the positioning spring 35 is fixed to one side of the inner wall of the inner cavity 32, contacts 37 are provided on both sides of the annular sheet 34, copper sheets 36 are fixed to the inner walls of both sides of the inner cavity 32, the two copper sheets 36 are electrically connected to the lighting lamp 15, the two copper sheets 36 are correspondingly fitted with the contacts 37, and one side of the guide rail 8 A side groove 17 is provided on the side, and a storage cavity 30 is provided inside the guide rail 8. The storage cavity 30 and the side groove 17 are communicated with each other. The other end of the positioning rod 33 passes through the inside of one side of the storage cavity 30. A contact plate 31 is provided inside the storage cavity 30. The front side of the contact plate 31 extends to the inside of the side groove 17. Both ends of the contact plate 31 extend to the two sides of the storage cavity 30 accordingly, and both sides of the contact plate 31 are inclined surfaces. The inclined surfaces on both sides of the contact plate 31 correspond to and fit with the other end of the positioning rod 33. A guide pressing block 39 is fixed on one side of the U-shaped push block 26. The guide pressing block 39 is slidably located inside the side groove 17, and one side of the guide pressing block 39 fits with the front side of the contact plate 31.

[0040] The effect achieved is that when one side of the U-shaped push block 26 slides toward the guide rail 8, the guide pressing block 39 located on the U-shaped push block 26 will slide into the inside of the side groove 17, and then as the U-shaped push block 26 slides toward the guide rail 8, the contact plate 31 will be pressed into the inside of the storage chamber 30. When the contact plate 31 slides into the inside of the storage chamber 30, the inclined parts at both ends of the contact plate 31 will contact one end of the positioning rod 33, and then the other end of the positioning rod 33 will be pushed outward to the inside of the positioning hole 6 on the arc frame 4, so that it constrains the guide rail 8 and the arc frame 4 to each other.

[0041] Working principle: When using this device, first install the placement frame 1 on the operating table, then place the patient's legs on the inner side of the arc-shaped support plate 2, then constrain the patient's legs on the inner side of the arc-shaped support plate 2 through the straps 3, and then slide the arc-shaped sliding sleeve 5 along the arc-shaped frame 4 so that it can drive the guide rail 8 to slide to the corresponding angle, and at the same time slide the pre-positioning cover 9 on the guide rail 8 so that the pre-positioning cover 9 can slide to just above the perforated part of the patient's leg, and then drive the double protrusion 18 by rotating the threaded knob 12, so that the raised part at one end of the double protrusion 18 pushes the elliptical frame 23 toward the direction of the clamping assembly, and when the elliptical frame 23 is pushed, it will drive the other side of the elliptical frame 23 to slide toward the arc-shaped baffle 22, thereby pressing the guide tube 11 between the arc-shaped baffle 22 and the other side of the elliptical frame 23, so that the guide tube 11 is fixed, when the raised part at one end of the double protrusion 18 pushes the elliptical frame 23 toward the direction of the clamping assembly When the guide rail 8 is pressed, when one side of the U-shaped push block 26 slides on the guide rail 8, the guide pressing block 39 located on the U-shaped push block 26 will slide to the inside of the side groove 17, and then as the U-shaped push block 26 slides toward the guide rail 8, the contact plate 31 will be pressed into the inside of the storage chamber 30. When the contact plate 31 slides into the inside of the storage chamber 30, the inclined parts at both ends of the contact plate 31 will contact one end of the positioning rod 33, and then the other end of the positioning rod 33 will be pushed outward to the inside of the positioning hole 6 on the arc frame 4, so that it constrains the guide rail 8 and the arc frame 4 to each other.

[0042] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An orthopedic surgery drilling auxiliary positioning device, characterized in that: It comprises a placement frame (1), wherein the top of the placement frame (1) is provided with an arc frame (4) near the edges of both sides, two guide rails (8) are provided between the opposite sides of the two arc frames (4), the outer surfaces of the two guide rails (8) are slidably connected with a pre-positioning cover (9), two sliding openings (38) are provided on both sides of the pre-positioning cover (9), the two guide rails (8) are correspondingly inserted between the inner walls of the sliding openings (38), and positioning components are provided inside the two guide rails (8) near the edges of both ends; A clamping assembly is provided on the inner wall of one side of the pre-positioning cover (9), a restraining assembly is provided inside the pre-positioning cover (9), arc-shaped support plates (2) are provided at the bottom of the placement frame (1) near the edges on both sides, and binding straps (3) are provided at the tops of the two arc-shaped support plates (2) near the edges on one side, arc-shaped sliding sleeves (5) are slidably provided on the outer surfaces of the two arc-shaped frames (4), and a plurality of positioning holes (6) are equidistantly provided on the outer surfaces of the opposite sides of the two arc-shaped frames (4).

2. The orthopedic surgery drilling auxiliary positioning device according to claim 1, characterized in that: A docking sleeve (7) is fixed to the opposite side of the two arc-shaped sliding sleeves (5), and the docking sleeves (7) are correspondingly extended into the interior of the arc-shaped sliding sleeves (5). Both ends of the two guide rails (8) are correspondingly engaged between the inner walls of the docking sleeves (7), and lighting lamps (15) are provided at the bottom of the pre-positioning cover (9) near the front and rear side edges.

3. The orthopedic surgery drilling auxiliary positioning device according to claim 2, characterized in that: A top cover (10) is arranged at the bottom of the pre-positioning cover (9), a threaded sleeve (13) is fixed at the top of the top cover (10), a cross shaft (14) is rotatably arranged at the top of the top cover (10) inside the threaded sleeve (13), the bottom of the cross shaft (14) passes through to the bottom of the top cover (10), a threaded knob (12) is threadedly connected to the outer surface of the threaded sleeve (13), the top of the cross shaft (14) is fixed to the bottom of the threaded knob (12), a guide tube (11) is arranged at the top of the top cover (10) near one side edge, the bottom of the guide tube (11) slides through to the bottom of the top cover (10), a through hole (16) is opened on the inner bottom surface of the pre-positioning cover (9) and passes through to the bottom, the guide tube (11) extends to the inside of the through hole (16).

4. The orthopedic surgery drilling auxiliary positioning device according to claim 3, characterized in that: The restraining assembly comprises a U-shaped frame (20), the U-shaped frame (20) being arranged on one side of the pre-positioning cover (9), both ends of the U-shaped frame (20) slidingly passing through the interior of the pre-positioning cover (9), an arc-shaped baffle (22) being fixed on the inner bottom surface of the pre-positioning cover (9) at one side edge of the through hole (16), the inner arc surface of the arc-shaped baffle (22) being flush with the inner arc surface of the through hole (16).

5. The orthopedic surgery drilling auxiliary positioning device according to claim 4, characterized in that: An elliptical frame (23) is arranged inside the pre-positioning cover (9), both ends of the U-shaped frame (20) are fixed to one side of the elliptical frame (23), one side arc surface of the elliptical frame (23) is opposite to the inner side arc surface of the arc-shaped baffle (22), the guide tube (11) is located between the one side arc surface of the elliptical frame (23) and the inner side arc surface of the arc-shaped baffle (22), and a return spring (21) is fixed to the outer surface of one side of the pre-positioning cover (9), and one end of the return spring (21) is fixed to the inner wall of the U-shaped frame (20).

6. The orthopedic surgery drilling auxiliary positioning device according to claim 5, characterized in that: The clamping assembly comprises a T-shaped block (28), two side restraining plates (25) are fixed on one side of the pre-positioning cover (9), an upper restraining plate (24) is arranged between the tops of the two side restraining plates (25), a U-shaped push block (26) is slidably fitted on one side of the two side restraining plates (25), one side of the U-shaped push block (26) is fitted with an inner wall of one side of the pre-positioning cover (9), the top of the U-shaped push block (26) is fitted with the bottom of the upper restraining plate (24), the T-shaped block (28) is located between the two U-shaped push blocks (26), and both ends of the T-shaped block (28) extend to the inside of the U-shaped push block (26).

7. The orthopedic surgery drilling auxiliary positioning device according to claim 6, characterized in that: The top of the U-shaped push block (26) is obliquely provided with a waist-shaped groove (27) extending therethrough, two levers (29) are slidably provided between the inner walls on both sides of the waist-shaped groove (27), the bottoms of the two levers (29) are fixed on a T-shaped block (28), one side of the T-shaped block (28) extends to the interior of the pre-positioning cover (9), one side of the two U-shaped push blocks (26) are correspondingly located on one side of the guide rail (8), the other side of the T-shaped block (28) is provided with a cylindrical cavity (40), one inner wall of one side of the cylindrical cavity (40) is fixed with a support spring (41), one end of the support spring (41) is fixed to the inner wall of one side of the pre-positioning cover (9).

8. The orthopedic surgery drilling auxiliary positioning device according to claim 7, characterized in that: The inner bottom surface of the pre-positioning cover (9) is rotatably provided with a double convex block (18), the double convex block (18) is located on the inner side of the elliptical frame (23), one end of the double convex block (18) is in contact with the inner wall of one side of the elliptical frame (23), and the outer surface of one side of the elliptical frame (23) is in contact with one side of the T-shaped block (28), a cross slot (19) is formed on the top of the double convex block (18), and the bottom of the cross shaft (14) is engaged in the inside of the cross slot (19).

9. The orthopedic surgery drilling auxiliary positioning device according to claim 8, characterized in that: The positioning assembly comprises a positioning rod (33); an inner cavity (32) is provided at an end edge of the guide rail (8); the positioning rod (33) is located inside the inner cavity (32); one end of the positioning rod (33) slides through the outside of the guide rail (8); an annular sheet (34) is fixed to the outer surface of the positioning rod (33); the annular sheet (34) slides between the inner walls of the inner cavity (32); a positioning spring (35) is fixed to one side of the annular sheet (34); one end of the positioning spring (35) is fixed to one inner wall of the inner cavity (32); contacts (37) are provided on both sides of the annular sheet (34); copper sheets (36) are fixed to both inner walls of the inner cavity (32); the two copper sheets (36) are electrically connected to the lighting lamp (15); and the two copper sheets (36) are correspondingly fitted to the contacts (37).

10. The orthopedic surgery drilling auxiliary positioning device according to claim 9, characterized in that: A side groove (17) is provided on one side of the guide rail (8), a storage chamber (30) is provided inside the guide rail (8), the storage chamber (30) and the side groove (17) are communicated with each other, the other end of the positioning rod (33) penetrates into one side of the storage chamber (30), a contact plate (31) is provided inside the storage chamber (30), the front side of the contact plate (31) extends into the side groove (17), both ends of the contact plate (31) extend to both sides of the storage chamber (30), and both sides of the contact plate (31) are inclined surfaces, and the inclined surfaces on both sides of the contact plate (31) are correspondingly fitted with the other end of the positioning rod (33), and a guide pressing block (39) is fixed on one side of the U-shaped push block (26), the guide pressing block (39) is slidably located inside the side groove (17), and one side of the guide pressing block (39) is fitted with the front side of the contact plate (31).

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